Spark-extinguisher



(No Model.) 2 Sheets-Sheet 1.

G. D. HUNTER.

SPARK EXTINGUISHBR. No. 285,900. Patented Oct. 2.1883.

A Harney,

N. PETERS. Pham-ulhugnphnr, wnsmngm". n4 c. Y

(No Model.) 2 sheets-sheet 2f G. D. HUNTER.

SPARK EXTINGUISHEB.. No. 285,900. Patented 0013.2, 1883.

www n". I :T

ATENT rrrrcE.

fcfEoReE n. HUNTER, oE TERRE HAUTE, INDIANA.

sPARK-ExTlNeUlsl-isn.

SPECIFICATION forming part of Letters Patent No.` 285,900, dated October 2, 1883.

Application filed August T, 1893.

llame, in the county Vigo and State of Indiana, have invented certain new and useful Improvements in SparkExtinguishers, of which,

the following is a specification, reference being had `therein to the accompanying drawings.

This invention relates to/certain new and useful improvements in sparkextinguishers, and itis designed to be used either in connection with my spark-arrester, as described in my application for Letters Patent thereon filed even date herewith, or in connection with any other form ot' arrester, it being speciallyr intended to be used with such as are located within the smoke-box ot' the locomotive; and it has for its objects, rst, to provide means for continuously attracting and collecting sparks and other solid particles of combustion escaping from the fire-box into the smoke-box, and i'or transmitting them from the latter to a suitable receptacle second, to provide meansV i'or receiving the sparks and other solid par-4 iclcs of combustion and the steam by which hey are thus transmitted from the smokebox 5 third, to provide means for allowing of the escape of the superllnous and unabsorbed steam and of the gases that may follow and accompany it with the cinders into the receptacle.

W' ith these ends in view my invention consists, essentially, in the employment of' an exhaust-nozzle having a lateral opening, and of a pipe or conduit communicating with such nozzle and with the smoke-box, and leading into and discharging into a sparlereceptacle 5 and it further consists in an improved smokeboX head or cap provided with steam-escap ing conduits which communicate with the cindcrrecepi'acle and with the open air or the stack.

In the accompanying drawings, forming a part of this specification, and on which like letters of reference indicate corresponding parts, Figure l represents a vertical sectional view taken longitudinally through the smoke-box of the locomotive, showing my improvements in cross-section as applied thereto, Fig. 2, a vertical sectional view of the smoke-box head,

taken on the line x .tof Fig. 3 5 Fig. 3, aviewV in front elevation,.showing one of the conduits in vertical section 5' Fig. 4, a view, partly in (No model.)

side elevation and partly in vertical section, of the smoke-stack; Fig. 5, a detached perspective view of the T head or pipe and its elbow which conducts the cinders to the receptacle, and Fig. 6 a plan view oi' the cinderreceptacle detached.

The letter A indicates the smokebox ofthe locomotive, the same being `generally of the ordinary or any approved construction, in the lower side or bottom of which is mounted the exhaust -nozzle (or nozzles if more than one be used) A', the samebein g preferably a doubleacting central dischargenozzle, and provided with a partition, A2, which terminates some distance below its mouth, whereby the discharge of the steam issues in a single volume. This nozzle has a branch, B, or an opening at one side, which communicates with the interior of the nozzle on each side of the partition', and which, if desired, may be provided with a thimble to contract the size of its mouth, as stated in my application liled even date herewith.

The letter B indicates the pipe through which the cinders are discharged, the inner end of which extends within a short distance of the opening or branch B of the nozzle, and is provided `with one or more slots or openings which commuuicate with the smoke-box.` The forward end of this pipe has :an elbow which terminates in a T-head, the month of which is daring and provided with a perforated ange, B2. This ilauge is bolted to theupper side of the cinder-reccptacle, to be presently described, and the pipe passesI through a suitable opening in the smoke-box head.

C indicates a cinder-receptaclc, the Same be ing constructed, preferably, of metal,I and provided with one `or more hand-holes, C', having covers. This receptacle has a door `at iis bottom, by which the cinders may be discharged, the said door, by preiercnce, being operated from the cab of the engine through suitable connections. lt is secured to the frame C?, and is located just forward of the smoke-box.

The letter D refers to the smokebox head, the same being constructed, by preference, of cast-iron, andsecn red to the smoke-box th rou gh. the instrumentality of the ring D, which is fastened to the forward end or" its shell. This head I) is cast or otherwise provided with curved conduits D?, which are on itsl forward side, and which partially encircle the door- IOO opening. The upper ends of these conduits unite, while the lower ends each communicate with the cinder-receptacleC through the openings c, anges being formed around the termini of the conduits, in order that they may be bolted, if desired, to the said receptacle. By preference the part of the head which forms ythe, outer walls of the conduit extends across the space between their lower ends, as seenin Fig. 3, through which portion an aperture is made for the passage of the pipe D. vide the head with the usual door, E, which may be provided with the ordinary devices for keeping it in a closed position.

Y The letter E refers to the smoke-stack, which in this instance is mounted upon the smokebox in the manner described in my contemporaneous application, and which is double walled, as seen at E2 and F. rIhe wall is shorter than the wall E2, and is provided with an ornamental cap, F, the opening at the top of which is slightly larger in diameter than the inner wall, El, which latter also extends slightly above the cap, for a` purpose which will presently appear. 'Ihe outer wall is further provided near its base with an aperture, around which is iitted and secured the upper cndof the coimnunicating` pipe of leg F2, the lower end of which fits over the upper termini ofthe conduits, and is connected to the head D. In some instances, however, I contemplate allowing the conduits to discharge into the open air, and may provide them with a pipe independent of the stack, which ma extendy to any desired height.

It will be understood that I contemplate providing the smoke-box, or in some instances the lower end of the stack, with a suitable diaphragm or other means which will act to cut oft the upward escape of the cinders or other solid particles of combustion which pass from the fire-box through the iues, and yet allow the escape of the smoke and gases.

rIhe nozzle is |to be extendedupwardly to sparks issue with the smoke and gases from the iiues, they, on being prevented from going up the stack, will gravitate and collect, to a certain extent, in the lower part of the smoke-box, from which place they are attracted and drawn into the pipe B through the broken joint between it andthe nozzle, and through ,its slots by the action of the escaping exhaust through the branch or opening B. From the pipe Bthey are discharged, together with the steam, which draws them into and forces them through the said pipe, into the cinder-rcceptacle C. I have ascertained that the sparksare thus entirely extinguished, andV that the steam partially condenses, the condensation collecting in the said receptacle.

The superfluous steam issues through the openings a into conduits D2, and thence either into the open air or into the annular space between the walls of the stack, and from it finally through an opening in the top of the ornamental cap. The inner wall of the stack I proextends above this cap, so as to prevent the smoke and dust from collecting in the said cap.

In some instances I may not use the inner solid section of the pipe B', as I have ascertained by actual trial that it is not positively necessary to the successful operation of the extinguisher; but I prefer to use the said section of pipe because it acts to more thoroughly clear the smoke-box of cindersand sparks.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters-Patent, is

1. In a spark-extinguisher, the combina-r tion, with the exhaust-nozzle having a divid ing-partition and the lateral opening communicating therewith on each side of said partition, of the cinderreceptacle, the pipe communicating with it and the s1noke-box,

provided with slots and extending near toV saidopening, whereby exhaust-steam issues into it and the sparks are drawn therein through its end and through the slots, sub-v stantially as described.

2.v In a spark-extinguisher, the combina tion, with the exhaust-nozzle having a lateral opening, the cinder-receptacle,and the slotted pipe communicating with it and the smoke-box, ofthe smoke-box head having conduits which communicate with said recepta# cle and with the smoke-stack, substantially as described.

3. In a spark-extinguisher, the combina.- tion, with the exhaust-nozzle having a lateral opening and the eiluler-receptacle communicating with the sm okc-box, ot' the smokebox head having conduits and the doublewallcdsmoke-stack communicating with said receptacle through the conduits, substantially as described..

4. In'a spark-cxtinguisher, the combination, with the cinder-receptacle adapted to receive the cinders from the smoke-box bythe 'action of the exhauststeam, ofthe smoke-box head having the conduits, the double-walled smoke-stack having auinner wall extending above the outer wall, and the pipe for connecting the conduits and the stack, substantially as described.

5. In a spark-extinguisher, the combination of the smokebox with t-he head thereof,

provided with curved conduits adapted to re-v IOO IIO

Letters Patent No. 285,900.

It is hereb;r certified that in Letters Patent No. 285,900, granted October 2, 1883, upon the application of George D. Hunter, of Terre Haute, Indiana, for an improvement n Spark-Extinguishers, an error appears requiring correction, as follows: inline l1, page 2 of the printed specification, the reference letter D 7 should read B and that of the oase in the Patent Office.

Signed, countersigned, and sealed this 13th day of November, A. D. 1883.

4 [SEAL] M. L. JosLYN,

A Acting Secretary 0j' the Interior. Countersigned BENJ. BUTTERWORTH,

Commissioner of Patents. 

